North Canterbury Quarries Ltd is a locally owned and operated business, operating a quarry supplying rotten rock and shingle in North Canterbury.
Kaiwara Rock Ltd is locally owned and operated by Jon & Hannah Thomson and Richard & Jane Egden. Operating a quarry based in Culverden, supplying rotten rock to dairy farmers in North Canterbury. Kaiwara Rock Ltd are also suppliers of shingle for roading, driveway & laneway applications.